Please see attachment. Explanation of how you got the answers would be very helpful!

Students who score within 13 points of the number 86 will pass a particular test. Write this statement using absolute value notation and use the variable a for the score. The answer field below uses the symbolic entry option in Mobius. That lets you type in a vertical bar to represent absolute values. Also, when you type in - and then =, the symbolic entry option will automatically convert that to and then =, the symbolic entry option will automatically convert that to 2. sin a